Question

Which family of elements on the periodic table would most likely have the electron dot diagram x:?

A. Group 1A, the alkali metals

B. Group 2A, the alkaline earth metals

C. Group 6A, the chalcogens

D. Group 7A, the halogens

E. Group 8A, the noble gases

Answer 1

Can anybody explain?

Answer 2

x: means the atom has 2 valence electrons.. so its b options i guess

Answer 3

Are you 100% sure? or you guess?

Answer 4

look, noble gases are either octate or duplet that means they donot have any valence electrons in them. The alkali metals have 1 valence electron, x. halogens are also x. calchogens have six . That leaves b

Answer 5

THANKS!